
A model shows a 25.25-carat Fancy Vivid yellow Daimond and Diamond Ring, and Pair of D-colour Internally Flawless Diamond Pendent Earrings together weighing over 36 Carats, Harry Winston during a Sotheby's press preview in Hong Kong, China, 07 March 2011. The Diamond Ring is expected to fetch from1.7 to 2 million US dollars and the Diamond Pendent Earrings are expected to fetch from 4.1 to 4.8 million US dollars which will be auctioned as part of Sotheby's Hong Kong Magnificent jewels and Jadeite Spring Sale 2011 held on 06 April this year. EPA/YM YIK

A model shows a Jadeite Bead Necklace during a Sotheby's press preview in Hong Kong, China, 07 March 2011. The Necklace is expected to fetch from 3.8 to 4.5 million US dollars which will be auctioned as part of Sotheby's Hong Kong Magnificent jewels and Jadeite Spring Sale 2011 held on 06 April this year. EPA/YM YIK

A specialist of auction house Sotheby's showing a Pair of D-colour Internally Flawless Diamond Pendent Earrings together weighing over 36 Carats, Harry Winston during a Sotheby's press preview in Hong Kong, China, 07 March 2011. The Diamond Pendent Earrings are expected to fetch from 4.1 to 4.8 million US dollars which will be auctioned as part of Sotheby's Hong Kong Magnificent jewels and Jadeite Spring Sale 2011 held on 06 April this year. EPA/YM YIK

A model shows a 27.67-carat Burmese Ruby and Diamond Ring, Bulgari during a Sotheby's press preview in Hong Kong, China, 07 March 2011. The ring is expected to fetch from1.5 to 2.5 million US dollars which will be auctioned as part of Sotheby's Hong Kong Magnificent jewels and Jadeite Spring Sale 2011 held on 06 April this year. EPA/YM YIK

A 25.50-carat Brilliant-Cut Unmounted D-Colour Flawless Diamond is displayed during a Sotheby's press preview in Hong Kong, China, 07 March 2011. The Diamond is expected to fetch from 3.8 to 4.8 million US dollars which will be auctioned as part of Sotheby's Hong Kong Magnificent jewels and Jadeite Spring Sale 2011 held on 06 April this year. EPA/YM YIK